- Diferrocenyl molecular wires. the role of heteroatom linkers
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Diferrocenyl molecular "wires", in which two ferrocenes are linked by a conjugated chain, allowing the communication of redox information between the ferrocenes, are a versatile platform on which to investigate notions of molecular conductivity. In this paper, we examine the role of heteroatoms=including O, P, S, and Se, as well as C atoms in various oxidation states=separated from the ferrocenes by intervening double bonds which minimize any steric effects. Surprisingly, oxygen is a better electronic mediator than sulfur, a phenomenon we attribute to superior molecular orbital overlap. These fundamental studies on redox coupling will help to guide the design of efficient organic conductors for organic electronics.
- Li, Yu,Josowicz, Mira,Tolbert, Laren M.
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supporting information; experimental part
p. 10374 - 10382
(2010/09/06)
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- PREPARATION OF CONJUGATED AROMATIC POLYENALS BY WITTIG OXOPROPENYLATION
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Heteroaromatic, or aromatic polyenals containing either electron-donating or withdrawing substituents can now be prepared easily in excellent yield by Wittig oxopropenylation with 1,3-dioxan-2-ylmethyltributyl phosphorane
- Spangler, Charles W.,McCoy, Ray K.
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